<?php

require_once 'HTMLPurifier/AttrDef/HTML/Bool.php';

/**
 * XHTML 1.1 Legacy module defines elements that were previously 
 * deprecated.
 * 
 * @note Not all legacy elements have been implemented yet, which
 *	   is a bit of a reverse problem as compared to browsers! In
 *	   addition, this legacy module may implement a bit more than
 *	   mandated by XHTML 1.1.
 * 
 * This module can be used in combination with TransformToStrict in order
 * to transform as many deprecated elements as possible, but retain
 * questionably deprecated elements that do not have good alternatives
 * as well as transform elements that don't have an implementation.
 * See docs/ref-strictness.txt for more details.
 */

class HTMLPurifier_HTMLModule_Legacy extends HTMLPurifier_HTMLModule
{
	
	// incomplete
	
	var $name = 'Legacy';
	
	function setup($config) {
		
		$this->addElement('basefont', true, 'Inline', 'Empty', false, array(
			'color' => 'Color',
			'face' => 'Text', // extremely broad, we should
			'size' => 'Text', // tighten it
			'id' => 'ID'
		));
		$this->addElement('center', true, 'Block', 'Flow', 'Common');
		$this->addElement('dir', true, 'Block', 'Required: li', 'Common', array(
			'compact' => 'Bool#compact'
		));
		$this->addElement('font', true, 'Inline', 'Inline', array('Core', 'I18N'), array(
			'color' => 'Color',
			'face' => 'Text', // extremely broad, we should
			'size' => 'Text', // tighten it
		));
		$this->addElement('menu', true, 'Block', 'Required: li', 'Common', array(
			'compact' => 'Bool#compact'
		));
		$this->addElement('s', true, 'Inline', 'Inline', 'Common');
		$this->addElement('strike', true, 'Inline', 'Inline', 'Common');
		$this->addElement('u', true, 'Inline', 'Inline', 'Common');
		
		// setup modifications to old elements
		
		$align = 'Enum#left,right,center,justify';
		
		$address =& $this->addBlankElement('address');
		$address->content_model = 'Inline | #PCDATA | p';
		$address->content_model_type = 'optional';
		$address->child = false;
		
		$blockquote =& $this->addBlankElement('blockquote');
		$blockquote->content_model = 'Flow | #PCDATA';
		$blockquote->content_model_type = 'optional';
		$blockquote->child = false;
		
		$br =& $this->addBlankElement('br');
		$br->attr['clear'] = 'Enum#left,all,right,none';
		
		$caption =& $this->addBlankElement('caption');
		$caption->attr['align'] = 'Enum#top,bottom,left,right';
		
		$div =& $this->addBlankElement('div');
		$div->attr['align'] = $align;
		
		$dl =& $this->addBlankElement('dl');
		$dl->attr['compact'] = 'Bool#compact';
		
		for ($i = 1; $i <= 6; $i++) {
			$h =& $this->addBlankElement("h$i");
			$h->attr['align'] = $align;
		}
		
		$hr =& $this->addBlankElement('hr');
		$hr->attr['align'] = $align;
		$hr->attr['noshade'] = 'Bool#noshade';
		$hr->attr['size'] = 'Pixels';
		$hr->attr['width'] = 'Length';
		
		$img =& $this->addBlankElement('img');
		$img->attr['align'] = 'Enum#top,middle,bottom,left,right';
		$img->attr['border'] = 'Pixels';
		$img->attr['hspace'] = 'Pixels';
		$img->attr['vspace'] = 'Pixels';
		
		// figure out this integer business
		
		$li =& $this->addBlankElement('li');
		$li->attr['value'] = new HTMLPurifier_AttrDef_Integer();
		$li->attr['type']  = 'Enum#s:1,i,I,a,A,disc,square,circle';
		
		$ol =& $this->addBlankElement('ol');
		$ol->attr['compact'] = 'Bool#compact';
		$ol->attr['start'] = new HTMLPurifier_AttrDef_Integer();
		$ol->attr['type'] = 'Enum#s:1,i,I,a,A';
		
		$p =& $this->addBlankElement('p');
		$p->attr['align'] = $align;
		
		$pre =& $this->addBlankElement('pre');
		$pre->attr['width'] = 'Number';
		
		// script omitted
		
		$table =& $this->addBlankElement('table');
		$table->attr['align'] = 'Enum#left,center,right';
		$table->attr['bgcolor'] = 'Color';
		
		$tr =& $this->addBlankElement('tr');
		$tr->attr['bgcolor'] = 'Color';
		
		$th =& $this->addBlankElement('th');
		$th->attr['bgcolor'] = 'Color';
		$th->attr['height'] = 'Length';
		$th->attr['nowrap'] = 'Bool#nowrap';
		$th->attr['width'] = 'Length';
		
		$td =& $this->addBlankElement('td');
		$td->attr['bgcolor'] = 'Color';
		$td->attr['height'] = 'Length';
		$td->attr['nowrap'] = 'Bool#nowrap';
		$td->attr['width'] = 'Length';
		
		$ul =& $this->addBlankElement('ul');
		$ul->attr['compact'] = 'Bool#compact';
		$ul->attr['type'] = 'Enum#square,disc,circle';
		
	}
	
}

